1，LUTAI calcium silicate board is a stable performance and light weight building&decoration board used siliceous and calcareous materials as major and natural fiber reinforced ,with the process of pulping ,emulsion, forming ,pressurization ,autoclaving, drying and surface treatment . 
Thickness : 4.5mm-30mm
Size :1200*2400mm, 1220*2440mm,  any size that u need . 
Surface : 40#-120# sanding surface , polished surface , tapered edge .
2,Product Characteristics 
Materials: Tombermorite crystals , natural fiber…….
Fire-proof : A-class incombustible (GB8624-1997)
Incombustibility: 240 minutes (GB/T9978-1999)
Density: 1.2-1.4g/cm3
Water content ratio:≤10%
Swelling ratio：≤0.45%
Shrinking ratio:≤0.45%
Anti-being strength：≥12MPA 、
Frost resistance : Don’t appear cracking and delamination after 25 cycles of freezing and thawing . (GB/T7019-1997)
Radioactivity: Standard of GB6566-2001 (A-class Decoration Materials)
3,Recommend Application:
Partition board，suspended ceilings , interior panel, exterior panel .